Fire-alarm.



H. G. PERKINS & G. H. ELLIOTT.

FIRE ALARM.

Prmoulon rmm 111:0. 1'1. 1910.

993,870. Patented May 30, 1911.

uNiTED sTATEs PATENT OFFICE.

HERMAN Gr. PERKINS AND GEORGE H. ELLIOTT, 0F TPEKA, KANSAS.

FIRE-ALARM.

specification of Letters' raient. Patented May 30, 1911.

Application led December 17, 1910. Serial No. 597,856.

To all whom it may concern: l

lie it. known that we, HERMAN G. PEmUNs and GEORGE Il. Enmo'r'r, citizens of the United States, residing at Topeka, in the county of Shawnee. and State of Kansas, have invented new and useful Improvements in 'I `ire..f\la1nis, of which the following is a specification.

This invention relates to automatic fire alarms which has for one of its objects to provide an alarm of this character which is especially adapted for use in hotels and other buildings having a large number of rooms.

Another object of the invention is to provide means whereby the location of a fire in the building is indicated simultaneously with the sounding of an alarm.

lVith these and other objects in view the invention consists in the structure, combination and arrangement of parts, hereinafter described, illustrated and claimed.

In the accompanying drawings z-Figure 1 is a perspective View of the device. Fig. 2 is a vertical section of a portion of the device.

Referring to the drawings the numeral 1 designates the alarm comprising a lower compartment 2 having a1 glazed door 3 whereby ready'access may be had to the interior ,for any necessary adjustments or repair, and an upper indicator compartment 4 provided with a glazed aperture 5 through which the indicator may be readily seen when an alarm is sounded. v

Extending from side to-side of the lower compartment 2 are cross-bars 7 and 8 and pivotally mounted upon the rear bar 8 are a plurality of levers 9 having indicator rods 10 swiveled to their forward end, the said rods extending up into'the indicator casing passing through suitable guides 11 and having an indicator board 12 attached in any suitable manner.

To the upper end of the rods 10 are secured ropes or exible connections 13 passing over pulleys 14 and thence over suitably located pulleys 15 to the rooms .where the .rope or flexible connection is encircled about the upper edge of the base-board and about the door casing.

Upon the upper surface of the cross-bar 7 is a contact plate 16 having electrical connection through a wire 17 with one of the oles of a battery 18, the other pole of said attery being connected with one side of -an alarm bell 19 the other side of said alarm bell being connected by a Wire 20 to a plate 21 secured to the upper face of the 'cross-bar 8. Each of the levers 9 have on their lower face a metal contact plate 22 which through the medium of the hinges of said levers are in electrical contact with the plate 21 secured to the cross bar 8.

With all the parts as shown and described it will be obvious that a burning apart of either or all of the cords will cause either or all of the levers to drop drawing down an indicator board or boards to view behind the glazed aperture 5 of the indicator casing 4 showing the location of the fire and at the same time bridging the plates of the cross-bar 7 and 8 closing the electrical circuit of the alarm-bell causing the lalarm to sound.

It will of course be understood that we do not limitourselves to the exact construction and arrangement of parts as shown and described, but reserve the right to make such changes as would come within the spirit of the invention.

We claim In a fire alarm, a casing, a pair of spaced cross bars arranged horizontally in the casing and provided with contact plates on their upper surfaces, a series of indicating members hinged to one of said cross bars and adapted to engage the other cross bar, said indicating members being provided with contact plates on their lower sides, the casing being formedwith a side opening, a series of flexible members connectedrwith the in dicating members and adapted to have distant o erative connection, a series of numbered oards carried by said flexible members and an alarm circuit connected with the contact platesof the cross bars.

In testimony whereof we atiix our signatures in presence of two witnesses.

HERMAN G. PERKINS. GEORGE H. ELLIOTT. 

